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Old 12-23-2012, 12:38 PM
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Removing pins from pistons

Hey guys I was cleaning out the basement and found some pistons and rods I had taken out of some motors a while back. Whats a easy way to get the pins out. They are chevy 350 rods and pistons.

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Old 12-23-2012, 12:42 PM
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Quote:
Originally Posted by ChevroletSS View Post
Hey guys I was cleaning out the basement and found some pistons and rods I had taken out of some motors a while back. Whats a easy way to get the pins out. They are chevy 350 rods and pistons.
Usally only a press will take them out if pressed in. Easiest way is to take them to a local machine shop and ask if they will push them out for cheap.

Other than that you got to press them. If you dont do it right you will trash the pin rods or pistons, usally a combo of all.
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Old 12-23-2012, 12:54 PM
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To expand on the previous post, there are special Kent Moore and Burroughs tools specifically for removing and installing piston pins without damaging anything. Without the proper tools and a press, you're not going to be able to do it.
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Old 12-23-2012, 01:59 PM
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rod removal

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Originally Posted by joe_padavano View Post
To expand on the previous post, there are special Kent Moore and Burroughs tools specifically for removing and installing piston pins without damaging anything. Without the proper tools and a press, you're not going to be able to do it.
warm up thr rod small end,have a corect size driver and tapthe pins out. secret is to be fast befor the pin gets hot.alot of shops hear inst new pistons the same way,just dont heat the rods red hot
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Old 12-23-2012, 02:10 PM
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sounds like a lot of work to get a set of bare press fit rods? what is the purpose of this excercise? If we have plans for new pistons then deal with this when we are resizing.If we are converting to floaters,then the machine shop that is converting can deal with the old pistons.If the rods are nothing special ,then give them to the new recipient with the old pistons still attached.
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Old 12-23-2012, 02:33 PM
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The reason for this is because it gives me something to do. I plan on using the rods on my truck engine . The pistons I dont want so Im not worried about damaging the pistons but other than that its something to keep me busy. So basically I can take my torch and heat them up just a little bit and the pins should come right out. I tried to take a 17mm socket and tap them out and the started to but stop so maybe a little heat will work.
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Old 12-23-2012, 04:12 PM
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Quote:
Originally Posted by ChevroletSS View Post
So basically I can take my torch and heat them up just a little bit and the pins should come right out.
Heat fairly quickly, keep the heat < 500 degrees F (straw yellow). I use a wooden piston support w/a hole drilled into it to receive the pushed out pin. I have done hundreds of rods like this.
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Old 12-23-2012, 05:22 PM
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Thanks for the tip
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Old 12-24-2012, 11:44 PM
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Could build a shop press or buy one cheap off craigslist/harbor freight.
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